The planning department shall maintain on file a map and associated documents which divide the residential areas within the city into individual R2 Overlay districts and which include such data as: total acreage of each district, total allowable units per district, etc. The R2 Overlay zone includes all residential zones in their entirety, and also all residential uses within nonresidential zones that existed prior to April 1, 2011. (Ord. 2020-14 § 1, amended, 2020; Ord. 2005-6, amended, 2005; Ord. 2002-18, amended, 2002; Ord. 98-13, amended, 2000)